Technical data

1. Enter the sudo nvram atto-args-celerityfc=“-e 0xff” command.
If
you are not the root user, you will be prompted for an administrator password.
2. Reboot the system for the changes to take effect.
3. Enter the nvram –p command to verify the change.
Collecting debug output
The Celerity FC host a dapter driver does not use the system log to communicate driver events because it
has
limited r
esources. To ensure that you can view events, the driver logs them internally.
You can retrieve logs using the ATTOCelerityFCLog utility, available in /System/Library/
Extensions/ATTOCelerityFCUtils
(Figure 7).
To retrieve a log for support analysis:
1. After reproducing the issue, launch ATTOCelerityFCLog.
2. Copy and paste the output into a TextEdit file.
3. Save the file
and forward it to the designated support channel.
Figure 7 ATTOCelerityFCLog example
ATTO Celerity IORegistry
The IORegistry provides useful troubleshooting inform ation about installed devices (Figure 8).
To retrieve an IORe gistry report for support analysis, enter IOREG.command from
/System/Library/Extensions/ATTOCelerityFCUtils.
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Troubleshooting the Celerity FC host adapter